Machine



1 A 5 Sheets-Sheet 1. 11. A. FISHER. A SAW FILING AND SETTING- MACHINE.

(No Model.)

d 8 M M v w R i M e o a Q m m .4 M d a .w w 5 t u v a P H:

yVITNESsE ANDREW B GflAHAM. FHUTO-UTNDMIMSNINGTDNJC.

(No Mod el.) 5 Sheets-Sheet z.

'D. A FISHER. SAW FILING AND SETTING MACHINE.

No. 562,383 Patented June 23, 1896.

"viill 7 a J 6 WWW y /0 55% WITN ESSES INVENTOR RNDREW B GRAHAM. PHOTO-LITHUWAYSHINGTUMDYC.

5 Sheets-Sheet 3.

(No Model.)

D. A. FISHER. SAW PILING'AND' SETTING MACHINE.

No. 562,383. 'PatentedJune 23, 1896.

INVENTOR WITNESSES AN DREW:B.GRAHAM. PHOTU-WQWASIPINGTOMDLY I (No Model.)

5 Sheets-Sheet 4.

D. A. FISHER. SAW FILING AND SETTING MACHINE. No. 562,383.

T m m v u N d I .6

ANDREW EGRAHAM. PHUTO-LITHQWASNINGTDMIG.

(No Model.) 5 Sheets-$heet 5.

1). A. FISHER. SAWPILING AND-SETTING MACHINE.

No. 562,383. PatentedJune-23, 1896.

INVENTOR wrrnsssss ANDREW E-GRANAM Pglmumuwas 1 UNITE STATES PATENT OFFICE. f

ANIEL A. rrsnnn, or rrrTs iiRe; PENNSYLVANIA, AssIeNoRuo LEx-.

i ANDER w. CADMAN, or EDGEWOODf PARK, PENNSYLVANIA.-

s A'w F LI NG AND, S ETTI NG ,M AC Hms.

j srncirrcn'rron forming part of Letters Patent no. 562,383, dated June 23, 1896.

Application filed m 25, 1894.; Seri To all whom it may concern; I Be it known that I, DANIEL A..F snnn,;of

Pittsburg, in. the .county' of Allegheny. and

State of Pennsylvania, have invented a new anduseful; Improvement in SawFiling and Setting Machines, of which the following is a full, clear, and exact description, reference ,Joeing had. to the accompanying drawings,

forming part of this specification, in which- Figure 1 is a sideelevation of my improved machine. Fig. 2 is a top plan view of the same Figs. 3 and 4. are rear elevations show ing the file in different positions. Fig.- 5 is a vertical cross-section on the line V Vof Fig. 2. Fig. Bis ahorizontal section on the line VI VI of Fig. 1. Figsl 7 and 8 are detail 1 views showing the setting-hammers in diiferent positions. Fig. 9 isa detailview show- 1 ing the relative positions of the file and hammers to the saw. Figs. 10 and 11 are plan views showing the slideoperating cam indifferent positions. Fig.12 is a detail rear view ,parts in each figure.

. ting of band-saws; and it is designed to af of the slide. Fig. 13 is a detail of one end of the saw-frame. Fig. letis a viewof a modified form of the means for movingthesaw.

Figs. 15 and 16 are detail perspective views of the head in closedandopen positions. i

Like symbols of reference indicate, like My invention relates to the filing and setford a machine which will quickly and .effec tually file andset the saw Without removing the same from its frame.

In the drawings, 2 represents the base of the machine, which is set on the bed of the means.

I file-frame 8.

saw and secured thereto by any suitable Fastened to thisbase are four posts 3, the two front posts of which are provided attheir ,upper ends with collars .4, forming guides for the guide-rod 5,which'reciprocates therethrough. The two rear posts are pro vided with half-collars, in which. a similar i guide-rod 5 rests, allowing the frame to swing up on the other guide-rod. i

Secured to the central portions of the guiderods is a frame 6, in the upper channeled face of which fits a slide 7, carrying at its end the The frame 6 and its guide-rods are reciprocated by a pin 2, projecting from 8.11%. 518,497. (No model.)

the upper faceofa bevel-wheel IO and havi 1 ing affriction-jroller fitting within a longitudii nalslot in the frame. The bevel wheel lOfis.

actuatedlby a bevel-wheehll, carried upon i the shaftlz, which is provided with a loose pulley 1'3and fast pulley 14, the fast pulley having aliandle 15 for applying hand powerj e e The slide 7 in the frame fi is when desired. provided at its rear end with a bar.16,which extends down through a slot in the frame, and is formed at its lower end with a horizontally extending contact strip 17 ,which is pressed upon by a cam ls iipon the edge of the bevel wheel 10. i

Fig. 10 shows the slide with the cam just beginning to act uponthe strip 17 to retract the slide, while Fig. 11 shows the slide held in retracted positionas the frame moves back to begin a new stroke. To force the slide forward when it is released by the cam, I provide the coiled springlt), which presses the slide forward tothe limit of its projection and exerts a yielding pressure Upon the file 20.

The file-frame is provided at one endwith Y e a clamp 2l for the tang of the file, while the otherend of the file enters a hole in a link 22, which maybe adj ustedverticall y by means of a screw 23, passing through a slot in the link to vary the degreeof inclination of the file. The file is inclined inorder to raise the saw a distance of one tooth during the stroke of the file, so as to bringanother tooth into position for the next stroke.

1 Instead of inclining the file itself, I may remove the link 22, secure the file in a hori zontal positiomand use theliftingpawl 24L, (shownin Fig. 14,) this pawl being pivoted to an arm 21', pivoted to the frame 6, thispawl being prevented fromtilting down beyond a certain point by a thumb-screw 25 bearing 9 upon itslower face,buttippingupward freely. U The arm 24tis held in adjusted position by a thumb-screw 25'. In this form, on the reverse stroke of the file, thejpawl bearing upon a i i i lower-tooth lifts the saw one tooth and brings it into position for the next stroke. In front of the file-frame is removably secured the head 26, (shown inFigs. 15 and 16,) this head having a slot 27 to receive the saw, the width of the slot being, made adjustable of the head for different thicknesses of saw by pivoting one half 28 to the other and using a thumb-screw 28, which enters a slot upon the swinging half of the head, as shown. The bed-plate is provided with a slot registering withthe slot 27 when the head is in place, and to this base are secured the two anvils 29, at difierent levels with which coact the settinghammers 30 and 31. These hammers are pivoted to the bed-plate at 32 and are provided with lugs 33, the lug of the upper hammer projecting down into the same horizontal plane as the lower, so that both are retracted by the pin 34:,wh ich is driven forward through its guide 35 by a cam 36 upon a vertical shaft carrying a toothed wheel 37. When the hammore are released by the pin riding over the point of the cam, the hammers are driven forward by a bow-spring 38, which is secured to the base and bears upon the front faces of the lugs 33. termeshes a pinion 39 upon the shaft of the bevel-wheel 10, these wheels being geared in the ratio of two to one, so that the hammers act once for every two strokes of the file and set two teeth simultaneously.

The action of the machine is as follows: The pivoted half of the head being swung back, the base of the machine is slid forward until the saw enters the slot therein and rests between the anvi'ls. The half-head is then swung to place and secured by the set-screw, and on rotating the fast pulley the file moves transversely to the saw and files one tooth, lifting the tooth at the same time, the frame 6 and guide-rods moving across the plane of the saw. As the end of the file approaches the saw, the cam, acting upon the contact-piece which is secured to the slide 7, retracts the file and holds it in such position as itmoves back to begin the next stroke, when itis released by the cam, and, moving forward under the action of the spiral spring, engages the next tooth and files the same, again lifting the saw as before. the file, thehammers operate to set two teeth, the point of the cam reaching the operatingpin 34 and releasing it, so that the bow-spring drives the hammers forward. The pin-operating cam is preferably arranged so that as soon as 'thehammers strike they begin to retract, the pin riding up an eccentric portion of the cam, so as to free the saw. If. the lifting-pawl of Fig. 14 is used, the cam is arranged to release the hammers at every other forward stroke of the file, in every case the hammers striking when the saw is stationary. As soon as the action is started correctly thebelt may be thrown upon the tight pulley, and the machine will-operate automatically to file and set the saw until stopped. V

The advantages of my invention are apparent, since without removing the saw and without the use of skilled labor the saw is filed and set with much greater uniformity and correctness than was possible by hand-labor.

l/Vith the toothed wheel 3'7 in- At every second return motion of chanic without departing from my invention;

' since hold the file-carrier slide in contact with the saw, and a cam arranged to move said slide re'arwardly within the frame; substantially as described.

3. A saw-setting machine comprising hammers, means for moving the saw one tooth at a time between the hammers, and means for actuating the hammers simultaneously at each second step or movement of the saw; substantially as described.

4. A saw filing and setting machine comprising a frame arranged to support a file, means for moving the frame transversely of the saw, means for withdrawing it from the saw upon each return stroke, hammers arranged to simultaneously strike and set the teeth, and means for moving the saw one tooth at a time, substantially as described.

5. A saw filing and setting machine oompris'ing a frame arranged to support a file, means for moving the frame transversely of the saw, means for withdrawing it from the saw upon each return stroke, and hammers arranged to operate every two double strokes of the file and set two teeth simultaneously; substantially as described. I

6. A saw filing and setting machine comprising a frame arranged to support a file, means for moving the frame transversely of the saw, means for withdrawing it from the saw upon each return stroke, means located upon the file-frame for moving the saw one tooth at a time, and hammers arranged to set the teeth; substantially as described.

7. A saw-setting machine comprising two hammers at different levels arranged to strike and set two teeth simultaneously, means for retracting the hammers, and means for moving the'saw one tooth at a time past the hammers, substantially as described.

In testimony whereof I have hereunto set my hand.

DANIEL A. FISHER.

- \Vitnesses:

W. B. CoRwIN, O. BYRNES. 

